from tkinter import * 
print('Введите начальную координату x:')
x = int(input())
print('Введите начальную координату y:')
y = int(input())
print('Введите масштаб фигуры')
n = int(input())
coords = [0, 0, 10, 0, 10, 10, 20, 10, 20, 20, 10, 20, 10, 30, 0, 30]
if n==0 and x>=0 and x<=500 and y>=0 and y<=500:
    pass
else:
    if n>0 and 0*n+x>=0 and 0*n+y>=0 and 20*n+x<=500 and 0*n+x<=500 and 20*n+y<=500:
        pass
    else:
        print('Размер фигуры превышает максимальный размер поля')
        exit()
root = Tk()
root.title('Ит марафон')
root.geometry('500x500')

canvas = Canvas (bg = 'white', width = 500, height = 500)
canvas.pack(anchor = CENTER, expand = 1)

canvas.create_polygon(coords[0] *n+x, coords[1] *n+y,
                      coords[2] *n+x, coords[3] *n+y,
                      coords[4] *n+x, coords[5] *n+y,
                      coords[6] *n+x, coords[7] *n+y,
                      coords[8] *n+x, coords[9] *n+y,
                      coords[10] *n+x, coords[11] *n+y,
                      coords[12] *n+x, coords[13] *n+y,
                      coords[14] *n+x, coords[15] *n+y,)
root.mainloop()
